In your remote console go to Tools > Distribution > OS Deployment. This will open a small window at the bottom of your console for OS Deployment. OR if you have your toolbox open in the console its under distribution there as well.

I dont have a remote console to test with, but it may be that this option is only seen if you are logged onto the core server iteself under the Configure | Services option - it contains the PXE Holding Queue and F8 timeout options.